If you want to create a free USB disk or DVD to install software or backup and restore Windows operating system. But they can’t find correct answers about this problem. Now this article is going to teach you the most useful 3 methods about how to create a free Windows 8.1 startup USB disk. See more as below.

The easiest way to create a free Windows 8.1 startup USB disk with boot genius. There is a simple guide to teach you how to do create Windows 8.1 USB step by step as below.

Step1: Download Windows Boot Genius and install it on any useful computer.Step2: Insert one blank USB flash drive to this computer and then launches Windows Boot Genius. In the main interface, select USB flash drive, and then click “Burn” to begin boot disk creation.Step3: Boot up computer that starts improperly from the newly created boot disk.

Step2: Run the downloaded installer file and then follow the simple on-screen instructions to install the tool on your PC.Step3: Connect your USB or flash or DVD to your PC if you want to create a bootable USB/DVD.Step4: Once installed, launch Windows 7 USB/DVD Download Tool. Click on Browse button to browse to your Windows 8.1 ISO file, and then click on the Next button.Step5: Then choose USB device as your media type to create bootable Windows 8.1 USB using the ISO file.

Step6: Selected USB device as your media type, you’ll see the following screen where you need to select your USB device and then click Begin.Step7: Once the bootable USB is ready, you’ll see Backup completed message. That’s it!
In my opinion, this method is too professional, it is difficult to understand for the computer idiot. Like me.

This method is too difficult to grasp and understanding, not commended.WiNTo Bootic
WiNToBootic is another free tool that allows you to create a bootable USB flash drive for installing Windows 7 or Windows 8. It supports an ISO file, a DVD, or a folder as the boot disk source. It’s a standalone tool that doesn’t require installation and it operates very fast.UNetbootin
UNetbootin is a free program for both Windows, Linux, and Mac OS X that allows you to create bootable Live USB drives for Ubuntu, Fedora, and other Linux distributions instead of burning a CD. It runs on both Windows and Linux. Either use UNetbootin to download one of the many Linux distributions it supports or provide the location of your own Linux ISO file.
As far as I know, method 1 is the easiest way to create a free Windows 8.1 USB disk, the safest and quickest way to boot up the computer from USB disk.